/***************************************************************************
 * Copyright (c) 2024 Microsoft Corporation 
 * 
 * This program and the accompanying materials are made available under the
 * terms of the MIT License which is available at
 * https://opensource.org/licenses/MIT.
 * 
 * SPDX-License-Identifier: MIT
 **************************************************************************/


/**************************************************************************/
/**************************************************************************/
/**                                                                       */ 
/** ThreadX Component                                                     */ 
/**                                                                       */
/**   Thread                                                              */
/**                                                                       */
/**************************************************************************/
/**************************************************************************/

/*#define TX_SOURCE_CODE  */


/* Include necessary system files.  */

/*
#include "tx_api.h"
#include "tx_thread.h"
*/

	.text
	.align 3
/**************************************************************************/ 
/*                                                                        */ 
/*  FUNCTION                                               RELEASE        */ 
/*                                                                        */ 
/*    _tx_thread_interrupt_control                      Cortex-A5x/ARM    */ 
/*                                                           6.1          */
/*  AUTHOR                                                                */
/*                                                                        */
/*    William E. Lamie, Microsoft Corporation                             */
/*                                                                        */
/*  DESCRIPTION                                                           */
/*                                                                        */ 
/*    This function is responsible for changing the interrupt lockout     */ 
/*    posture of the system.                                              */ 
/*                                                                        */ 
/*  INPUT                                                                 */ 
/*                                                                        */ 
/*    new_posture                           New interrupt lockout posture */ 
/*                                                                        */ 
/*  OUTPUT                                                                */ 
/*                                                                        */ 
/*    old_posture                           Old interrupt lockout posture */ 
/*                                                                        */ 
/*  CALLS                                                                 */ 
/*                                                                        */ 
/*    None                                                                */ 
/*                                                                        */ 
/*  CALLED BY                                                             */ 
/*                                                                        */ 
/*    Application Code                                                    */ 
/*                                                                        */ 
/*  RELEASE HISTORY                                                       */ 
/*                                                                        */ 
/*    DATE              NAME                      DESCRIPTION             */
/*                                                                        */
/*  09-30-2020     William E. Lamie         Initial Version 6.1           */
/*                                                                        */
/**************************************************************************/
/* UINT   _tx_thread_interrupt_control(UINT new_posture)
{ */
    .global  _tx_thread_interrupt_control
    .type    _tx_thread_interrupt_control, @function
_tx_thread_interrupt_control:

    /* Pickup current interrupt lockout posture.  */

    MRS     x1, DAIF                            // Pickup current interrupt posture

    /* Apply the new interrupt posture.  */

    MSR     DAIF, x0                            // Set new interrupt posture
    MOV     x0, x1                              // Setup return value
    RET                                         // Return to caller
/* }  */

